MeasureThat.net

Run results for: .startsWith() vs .test() vs .match() vs .indexOf()

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6 Safari/605.1.15
Safari 15
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
regexp .test() 9350183.0 Ops/sec
string .match() 6249600.0 Ops/sec
indexOf === 0 8080603.0 Ops/sec
string .startsWith() 9802150.0 Ops/sec
Script Preparation code:
Tests:

  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()